.chainartgraybg{
    background-color: #f6f6f6;
    padding: 50px 0;
}
.chainartBan{
    background-image: url(../../images/product/chainArt/banner.png);
    background-repeat: no-repeat;
    background-position:center top;
    height: 690px;
}
.chainartbox1{
    background-image: url(../../images/product/chainArt/artpic1.png);
    background-repeat: no-repeat;
    background-position:center;
    height: 977px;
    padding: 50px 0;
}
.chainartbox2{
    background-image: url(../../images/product/chainArt/artpic2.png);
    background-repeat: no-repeat;
    background-position:center;
    height: 493px;
    padding: 50px 0;
}
.chainartbox3{
    background-image: url(../../images/product/chainArt/artpic3.png);
    background-repeat: no-repeat;
    background-position:center;
    height: 736px;
    padding: 50px 0;
}
.chainartbox4{
    background-image: url(../../images/product/chainArt/artpic4.png);
    background-repeat: no-repeat;
    background-position:center;
    height: 613px;
    padding: 50px 0;
}

.chainartbox5{
    background-image: url(../../images/product/chainArt/artpic5.png);
    background-repeat: no-repeat;
    background-position:center;
    height: 776px;
    padding: 50px 0;
}

.chainartbox6{
    background-image: url(../../images/product/chainArt/artpic6.png);
    background-repeat: no-repeat;
    background-position:center;
    height: 1700px;
    padding: 50px 0;
}
.chainartbox7{
    background-image: url(../../images/product/chainArt/artpic7.png);
    background-repeat: no-repeat;
    background-position:center;
    height: 769px;
    padding: 50px 0;
}
.chainartbox8{
    background-image: url(../../images/product/chainArt/artpic8.png);
    background-repeat: no-repeat;
    background-position:center;
    height: 742px;
    padding: 50px 0;
}
.chainartbox9{
    background-image: url(../../images/product/chainArt/artpic9.png);
    background-repeat: no-repeat;
    background-position:center;
    height: 620px;
    padding: 50px 0;
}
.chainartbox10{
    background-image: url(../../images/product/chainArt/artpic10.png);
    background-repeat: no-repeat;
    background-position:center;
    height: 606px;
    padding: 50px 0;
}
.chainartbox11{
    background-image: url(../../images/product/chainArt/artpic11.png);
    background-repeat: no-repeat;
    background-position:center;
    height: 773px;
    padding: 50px 0;
}
.chainartbox12{
    background-image: url(../../images/product/chainArt/artpic12.png);
    background-repeat: no-repeat;
    background-position:center;
    height: 2530px;
    padding: 50px 0;
}
.chainartbox13{
    background-image: url(../../images/product/chainArt/artpic13.png);
    background-repeat: no-repeat;
    background-position:center top;
    height: 560px;
}